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Object oriented programming with JAVA

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need someone to write the codes in less then 1 day, 24 hours, consists of 2 questions:











 












 





 

 











M251-M257: Object oriented
programming with JAVA





                                                             



 





                                                                                     

 

Question 1: (20 marks)

a)      Write a method that reads candidates information from an input
file, an example of which follows:


2

Trump:35:8

Biden:18:26

The first
line consists of a number that specifies how many candidates are running for
the US presidential election. If that number is n, the next n lines each
specify a candidate, with the candidate's name appearing on the line first,
followed by a colon, and followed by the number of popular and electoral votes
received by that candidate each separated by a colon. Then the method finds and
returns the winner information who got the maximum electoral votes. You may
assume that the input file will always be properly formatted according to this
specification.  (10 marks)


 

b)      Design and implement a JavaFX GUI which has a text area and a
button. When the program starts up, it calls your method in (a) to read and
return the winner’s information in an appropriate format, so once the user
clicks the button, it displays the winner who got the maximum electoral
votes.  (10 marks)


 

 

 

 

 

 

 

 

 

 

 

Question 2: (80 marks)

"Unlike
many elections for public office where a person is elected strictly based on
the results of a popular vote (i.e., the candidate who earns the most votes in
the election wins), in the United States, the election for President of the
United States is determined by a process called the Electoral College.

According to
the National Archives, the process was established in the United States
Constitution as a compromise between election of the President by a vote in
Congress and election of the President by a popular vote of qualified
citizens." (https://tasks.illustrativemathematics.org/content-standards/tasks/1199 accessed
November 22, 2020).


Each state
receives an allocation of electoral votes in the process, and this allocation
is determined by the number of members in the state's delegation to the US
Congress. This number is the sum of the number of US Senators that represent
the state (always 2, per the Constitution) and the number of Representatives
that represent the state in the US House of Representatives (a number that is
directly related to the state's population of qualified citizens as determined
by the US Census). Therefore the larger a state's population of qualified
citizens, the more electoral votes it has.

Note: the
District of Columbia (which is not a state) is granted 3 electoral votes in the
process through the 23rd Amendment to the Constitution.

The
following table shows the allocation of electoral votes for each state and the
District of Columbia for the 2012, 2016, and 2020 presidential elections.
(http://www.archives.gov/federal-register/electoral-college/allocation.html
accessed November 22, 2020).

Total Electoral Votes:  538;   Majority Needed to Elect:  270






State


Electoral votes


State


Electoral votes


State


Electoral votes




Alabama


9


Kentucky


8


North Dakota


3




Alaska


3


Louisiana


8


Ohio


18




Arizona


11


Maine


4


Oklahoma


7




Arkansas


6


Maryland


10


Oregon


7




California


55


Massachusetts


11


Pennsylvania


20




Colorado


9


Michigan


16


Rhode Island


4




Connecticut


7


Minnesota


10


South Carolina


9




Delaware


3


Mississippi


6


South Dakota


3




District of Columbia


3


Missouri


10


Tennessee


11




Florida


29


Montana


3


Texas


38




Georgia


16


Nebraska


5


Utah


6




Hawaii


4


Nevada


6


Vermont


3




Idaho


4


New Hampshire


4


Virginia


13




Illinois


20


New Jersey


14


Washington


12




Indiana


11


New Mexico


5


West Virginia


5




Iowa


6


New York


29


Wisconsin


10




Kansas


6


North Carolina


15


Wyoming


3






 

The Constitution
does not specify how individual states must allocate their electoral votes.
There are different methodologies. In US election 2020, all states, except
Maine and Nebraska (in red), have a winner-take-all (WTA) method where the
state looks only at the overall winner of the state-wide popular vote. The WTA
awards all electoral votes to the popular vote winner of the state.

Maine and
Nebraska both use an alternative method of distributing their electoral votes,
called the Congressional District-Popular method (CDP).

Maine has
two congressional districts while Nebraska has three congressional districts
due to its population. The winner of each congressional district (CD) is
awarded one electoral vote, and the winner of the state-wide vote is then awarded
the state's remaining two electoral votes.

In US
election 2020, a vote for the Presidential candidate is for either Trump or
Biden.

a)      Design and implement Java classes to represent the following:

1.      Candidate: each object of which represents one candidate,
consisting of a name, and the number of electoral and popular votes received by
that candidate so far. (7 marks)


2.     
Using Java Comparator interface, implement necessary
classes in order to compare candidate objects on the basis of the data members;
the number popular votes or the electoral votes.  This would help you to find Collection.max()
either based on popular votes or electoral votes. (6 marks: 3 marks for each
comparison class)


3.      State: each object of which represents one state, consisting of
the number of electoral votes allocated for that state, list of candidates and
the state certified winner. (10 marks)


4.      WTA State: each object of which represents one state type that
implements WTA method and it consists of an ArrayList of votes. Each vote
consist of a name of the presidential candidate for US. (In 2020 presidential
election, votes are for either “Trump” or “Biden”). (3 marks)


5.     
CDP State: each object
of which represents one state type that implements CDP method and it consists
of an ArrayList of votes for each CD. (3 marks)


Note: In each class, implement constructors and appropriate
accessor and mutator methods.

 

b)     
In each state type, define necessary methods to compute the
number of popular votes and the number of electoral votes received by each
presidential candidate in one state based on its implemented methodology. Use Collection.frequency()
and Collection.max() to count votes and assign the winner respectively.
(8 marks for computing votes in WTA state + 15 marks for computing votes in CDP
state)


c)     
Redefine the method toString() in the following classes:


1.     
Candidate class to concatenate the state name and the number of
popular and electoral votes received by a candidate object. (1 mark)


2.     
State class to concatenate the state name and the number of
popular and electoral votes received by each candidate. In addition to the
state certified winner details. (4 marks)


d)     
Design and implement a test class. This should contain a main
method to do the following (23 marks):


1.     
Write a method that randomly generates an odd number of votes in
the range 1-10. (3 marks)


2.     
Write a recursive method that fills and returns a list of random
votes for either Trump or Biden of length n where n is an odd number. (Call
your method in d(1) to get an odd number to be sent as parameter to the
recursive fill method). (6 marks)


3.     
Create a list of candidates that consists of the two candidates;
Trump and Biden for 2020 US presidential election. (2.5 marks)


4.     
Create a list of US states. Fill in the list of states with
hard-coded test data (no user input) from the table above. The states list
should hold at least five state objects of any type (WTA and CDP states) where
at least one of states is a CDP state. Call your method in d(2) to get a
randomly generated votes list for each state or CD. (5 marks)


5.     
For each state, display the candidate list and the state
certified winner. At end, announce the overall US Presidential Election Results
2020 for each candidate and the certified winner. (6.5 marks)


 

Sample run which takes
from table 1, the first four states in addition to Nebraska. The state’s output
was generated from randomly generated votes list:

Alabama

Candidate            Popular votes      Electoral
votes


Trump:                 4                           9

Candidate            Popular votes      Electoral
votes


Biden:                  3                           0

Winner:

Candidate            Popular votes      Electoral
votes


Trump:                 4                           9

 

Alaska

Candidate            Popular votes      Electoral
votes


Trump:                 1                           0

Candidate            Popular votes      Electoral
votes


Biden:                  4                           3

Winner:

Candidate            Popular votes      Electoral
votes


Biden:                  4                           3

 

Arizona

Candidate            Popular votes      Electoral
votes


Trump:                 2                           0

Candidate            Popular votes      Electoral
votes


Biden:                  3                           11

Winner:

Candidate            Popular votes      Electoral
votes


Biden:                  3                           11

 

Arkansas

Candidate            Popular votes      Electoral
votes


Trump:                 6                           6

Candidate            Popular votes      Electoral
votes


Biden:                  3                           0

Winner:

Candidate            Popular votes      Electoral
votes


Trump:                 6                           6

 

Nebraska

Candidate            Popular votes      Electoral
votes


Trump:                 10                         1

Candidate            Popular votes      Electoral
votes


Biden:                  15                         4

Winner:

Candidate            Popular votes      Electoral
votes


Biden:                  15                         4

 

US Presidential Election Results 2020:

Candidate            Popular votes      Electoral
votes


Trump:                 23                         16

Candidate            Popular votes      Electoral
votes


Biden:                  28                         18

Winner:

Candidate            Popular votes      Electoral
votes


Biden:                  28                         18

 

 



                                                                                                                                                  End of Assessment